30 Days with Claude Mythos Preview: How Tenable Adapted Our Security Program, and Why Yours is Next
Tenable, Monday, August 3rd, 2026
Tenable spent 30 days running Claude Mythos Preview against its own code, proving bugs with reproducible exploits.
Tenable spent 30 days running frontier AI models against its own codebase.
The models did more than identify potential defects: they proved findings were real by producing reproducible exploits.
Tenable argues this changes code security fundamentally, moving from ranking possible issues to focusing on confirmed, exploitable ones.
The company describes how it adapted its security program in response and argues other organizations will face the same shift.